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Canadian car identification here: Serial Numbers 1935-1964 | 1965-1966
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Thread: Assistance in Engine Identification

  1. #1
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    Assistance in Engine Identification

    Sorry for the simpleton question but I really want to nail down the engine I have going into a 52 M38 Jeep Restoration I am doing. I have searched high and low to match the marking on the engine and have not had any success.

    Its a Buick V6 Fireball Odd Fire. Not sure if its a 198 or 225 cid.

    The intake manifold at the rear has the marking B 1376848

    Would really like to know
    a. Year of manufacture
    b. CID
    c. Where engine was made

    Attached is a quick photo. Thanks in advance for you folks that know a heck of allot more than I do on this subject.

    Rich Palmer
    Attached Images Attached Images

  2. #2
    casting number info, even for the SBB v8s back then, is really spotty and incomplete. *we* don't have anything on the v6 stuff at all, a Buick v6 board ( like turbobuick.com or beforeblack.com ) might possibly. don't be surprised if they don't have though.


    what you really want to find is the two digit engine code stamping ( assuming the engine block has not been decked ), that will tell you the year and original configuration of the engine. the EIN ( which is a version of the VIN ) stamping would also accomplish this.

    just looking at the valve covers ( asymmetric stamping, so they'll resemble Nailhead covers ), i would assume that this would be 1960s production.

    that doesn't do much for your "198 or 225" question though. it doesn't even tell you if this is a Buick v6 or an AMC made knock off from the late 60s ...
    http://www.jeeptech.com/engine/dauntless225.html


    use this page to find your stampings:
    http://www.teambuick.com/reference/i...gine_where.php


    if you'd like to make a list of the various casting codes and post them, i'd appreciate it.

    we'd be looking for
    * block
    * intake
    * heads - take valve cover off
    * exhausts
    The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
    Vladimir Lenin

    Government schooling is about "the perfect organization of the hive."
    H.H. Goddard, Human Efficiency (1920)

  3. #3
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    Thanks Bob. Here is the additional info.

    Thanks Bob. It makes me feel a bit better about my search knowing that this information is hard to get and maybe impossible to get.

    For sure the motor is a Buick. It has GM Stampings.

    As far as the other information that could be checked here goes.

    Block
    Located back end just below the intake manifold
    B 1375162
    L18 E

    Block
    Located passenger side just under the heads (Very hard to read. My new paint job filled it in)
    200
    KMH

    Intake Manifold
    Located back end of engine
    B 1376398 D

    Heads
    Stampings under valve covers
    B1376348 D
    GM 3

    Exhaust Manifold
    B 1375905-A

    Thanks again Bob for your sharing your knowledge. Hope you had a Merry Christmas...

  4. #4
    With a slight change in numbers, the heads show as 225 here:
    http://www.teambuick.com/reference/c...numbers_v6.php


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  5. #5
    i would think that the 'KMH' is your engine code ... but that's not a valid stamping. could be a mis-stamp from the factory.

    the 'K' would code for 1964,

    a 'KH' would be a 1v carb, 9.0:1, 155hp 225ci.

    'KM' codes for the low comp ( 7.6:1 ) export version of the 300ci v8, thus is clearly wrong.

    'M' as the year code would be 1966,

    'MH' would be a 2v carb, 9.0:1, 160hp 225ci.

    'MK' would be the export low comp 225, practically impossible that you've got that.


    i think the '200' is a manufacturing date code, perhaps the 200th day of the year.


    198ci was only available two years, 1962-63. 63 was the first year of 'Chevy style' coding and uses 'J' as the first character and year designator. 1962 used the old Buick style codes and would have been stamped "6I", both engines would be 8.8:1 and 135hp. in 62, the 'I' codes the year but is placed at the end of the engine code instead of at the front.



    if you decide to go nuts and measure the silly thing, the 198ci is 3.625" x 3.20" bore / stroke while the 225ci is 3.75" x 3.40".

    so you MIGHT be able to verify this by pulling a spark plug and inserting a dowel rod to follow the piston from BDC to TDC while you turn the crank pulley. that .2" in stroke length should be noticeable, if you can keep the rod straight and touching the same part of the piston top. obviously, that would be much easier as a two person job.



    thanks for pulling those casting codes for us.

    i would note though, that the driver and passenger side exhausts will have different casting codes ... and you didn't tell us which one you pulled that exh code from.
    The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
    Vladimir Lenin

    Government schooling is about "the perfect organization of the hive."
    H.H. Goddard, Human Efficiency (1920)

  6. #6
    With a slight change in numbers, the heads show as 225 here:


    hunh. i didn't even know you had that up.

    how long have we had a v6 casting # page, Bob?



    here's the BeforeBlack.net casting number page:
    http://www.beforeblack.net/casting.htm
    The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
    Vladimir Lenin

    Government schooling is about "the perfect organization of the hive."
    H.H. Goddard, Human Efficiency (1920)

  7. #7
    With a slight change in numbers, the heads show as 225 here


    my personal spreadsheet agrees with Rich's head # for 1966. i have no idea where i got the info from though.


    if i pulled it off of Gessler's page, he's closed up shop and all that info is gone permanently.
    The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
    Vladimir Lenin

    Government schooling is about "the perfect organization of the hive."
    H.H. Goddard, Human Efficiency (1920)

  8. #8
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    Thank you to both Bob's

    Thanks again for your assistance with identifying my Buick engine. The resource information both of you provided is very much appreciated.

    Have some good down time over the Holiday's...

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